It is not bad (we like the ruggedness of the lines), but since I was the "lead" on this project, the kids now want to focus on another part of Washington and make their own. I finally got things "working" and we burned our first map. That led me down a whole other rabbit hole. My solution was to export and use my Illustrator skills to smooth things.but I ended up with the "banding" issue. I tried some sample scripts I found, but it gave me an error (I am not a programmer.so I an struggling to debug it). The only thing I have not been successful with is Python. I have probably process the elevations no fewer than 50 times. I have gone from 1-25 on the neighborhood sizes, tried "rectangle" (and all the others), changed "map" to "cell," changed "mean" to a few of the others, etc. The issue come when I try to process things in Focal Statistics. I have all the DEM data loaded, and have been working with the kids on the elevation intervals.all that is working great. I have tried everything I can find online, but I can't get the contours to "smooth." Every time I smooth them (increase the neighborhood size in Focal Statistics), I lose some of the bays and inlets.but it is still "jagged." The science teacher has seen some of the stuff that came out of my class, so he challenged me with bathymetric maps cut out on the laser. In class, they are doing relief maps with cardboard. Fish and Wildlife Service Home Page |Ībout the U.S.I am working with my middle school kids on a science project (I am the tech teacher with a laser cutter). The Feather Atlas illustrates feathers in ventral view only when the under surface is very different from the upper surface (e.g., in Black and Turkey Vultures). Ventral: the under surface of the body, or of any body part oriented in a normal horizontal postion. The posterior vane is the trailing edge of the feather. On remiges, the anterior vane is on the forward side of the rachis (the leading edge). Vane: the smooth feather surface formed by the interlocked pennaceous barbs. Tertial: the innermost flight flight feathers of the wing, attached to the humerus bone in the bird's upper arm. If obvious, usually indicates that a feather is from waterfowl. Tegmen: a shiny or waxy-looking patch along the shaft on the underside of primaries of waterfowl and some gamebirds, gulls, and owl. In such species, age is often estimated by plumage stage (e.g., Subadult I, II, and III for Bald Eagles). Subadult: a bird that is not fully adult, in species that require more than one year to achieve adult plumage (e.g. Secondary: one of the wing's inner flight feathers, which are attached to the ulna bone in the bird's "forearm." The number of secondaries varies from 9-25 depending on the species. Rectrices: the flight feathers of the tail. Remiges: the flight feathers of the wing, including the primaries, secondaries, and tertials. Rachis: the upper portion of the feather shaft, to which the barbs are attached. Primary: one of the wing's outer flight feathers, which are attached to the fused bones of the bird's "hand." Most bird species have 9-10 primaries. Plumulaceous Barbs: barbs without interlocking barbules, forming a loose fluffy layer at the base of a contour feather or making up the entirety of a down feather. Pennaceous Barbs: barbs with interlocking barbules that form a coherent vane. Notch: a distinct narrowing in the posterior vane of a primary flight feather. Immature: a young bird in its first year, before it has acquired adult plumage. Most scans in the Feather Atlas illustrate the feathers in dorsal view, showing the upper surface of the feathers.Įmargination: a distinct narrowing in the anterior vane of a primary flight feather.įlight Feathers: the large wing and tail feathers that provide lift and maneuverability in flight (see "Remiges" and "Rectrices"). In some birds, such as eagles, these are large enough to merit illustration in the Feather Atlas.ĭorsal: the upper surface of the body, or of any body part oriented in a normal horizontal position. Those on the upper (dorsal) surface of the body are called upper wing and upper tail coverts those on the under (ventral) surface are called under wing and under tail coverts. Sometimes called the quill.Ĭontour Feathers: the feathers forming the bird's outer body covering, including the flight feathers and the overlapping body feathers that produce the bird's smooth aerodynamic shape.Ĭoverts: the contour feathers that cover the bases of the flight feathers. In some birds, such as Bald Eagle, these are large enough to merit illustration in the Feather Atlas.īarb: an individual strand of feather material (keratin), extending laterally from the rachis.īarbule: a lateral branch of a feather barb.Ĭalamus: the hollow inner portion of the feather shaft that lacks barbs and attaches to the skin. Axillaries: feathers in the axilla ("armpit") of the bird.
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